Citadel: Diana

In a grey and hyper-controlled Milan, Diana and Luca are sent on a mission in Lugano to spy on a secret meeting between Manticore France and Manticore Germany. Edo Zani receives a marriage proposal from Cecile, the head of Manticore France.

Diana and Edo secretly team up and make their first move. However, they underestimate the ferocity of Cecile's reaction. While Manticore Italy is under attack, Ettore Zani must intervene to prevent war from breaking out.

Ettore orders Edo to capture Weber, who has been spotted near Palermo. Edo agrees, on the condition that he can take Diana with him. Diana and Edo's mission leads them through a chase through the ghost town of Gibellina.

After discovering that his son conspired behind his back, Ettore expels Edo from Manticore and has Diana locked up in the cells at headquarters. Edo, who designs Manticore Europe's security systems, manages to get into the cells and speak to Diana.

Edo leads a group of agents in an attack on the Manticore France's headquarters in Paris. As Diana is about to get her hands on the weapon, she is forced to decide which side she is on, just like she had to eight years earlier.

While Diana reflects on her choice, Edo works on a powerful new weapon. Ettore, trying to get closer to his son, plays one last card. In the past, the Zanis mourn Enrico while Diana realises that she is the last living Citadel agent.